I'm sorry for any trouble caused by the unforeseen circumstances.
Sorry for the inconvenience this may have caused. Please accept my sincere apologies for any disruption you may have experienced. Unfortunately, we can't to meet your requirements currently. Sorry for any disappointment this may cause. Sorry for any trouble that may have encountered. I apologize if there was any misunderstanding in sharing information. Kindly forgive me if
my actions have brought about disruption. I understand that this may be frustrating. Apologies for any frustration this may have elicited. Please be assured that we are doing our best to resolve the matter as quickly as possible. I sincerely apologize for any disruption you may have faced due to this circumstance.